only up to PD of 64 for Smith Lab
"If your PD is greater than 64 - single or right/OD + left/OS then the Smith Lab can not create your lenses. You will need to use a 3rd party. :-( I found that Lensabl can even handle the ESS/Oakley URx Prescription Insert with its nylon string for the lens. These are great inserts for your googles - no need to find OTG googles. I am able to get by with single vision. If you need progressive lenses then you will need to use a 3rd party."